aiwa ESTM-128 In-Ear Headphones User Guide
- June 6, 2024
- Aiwa
Table of Contents
Aiwa ESTM-128 In-Ear Headphones
Specification
Model Number: ESTM-128
Product: Wired In-Ear Headphones
Cord Length: 1200 mm ± 20 mm
Plug: 3.5 mm gold plated plug
Impedance: 16Ω
Speaker Size: ∅10 mm
Rated Power: 3mW
Operation Voltage: 2.0V
Frequency: 20Hz~20KHz
Sensitivity: 100dB±3dB
Weight: 13.4g
Remote Control
| Action | Result |
|---|---|
| Click Once | Play & Pause Music / Answer Incoming Call |
| Click Twice | Next Track |
| Triple Click | Previous Track |
Long press
(2-3 seconds)
| Reject Incoming Call / Activate Siri
Important Safety Notes
Make sure the volume of the music player is turned down before connecting your
headphones. After connecting your headphones, gradually turn up the volume
until you reach a comfortable listening level.
Noise levels are measured in decibels (dB), exposure to any noise at or above
85 dB may result in hearing loss. Monitor headphones usage. Hearing loss is a
function of loudness versus time. This is the decibel (dB) table that compares
some common sounds and shows how they rank in potential harm to hearing.
| SOUND | NOISE LEVEL | EFFECT |
|---|---|---|
| Whisper | 30 | very quiet |
| Quiet Office | 50~60 | Comfortable hearing levels are under 60 dB |
| Vacuum Cleaner / Hair Dryer | 70 | Intrusive; interferes with telephone |
conversations
Food Blender / Garbage Truck| 85~90| 85 dB is the level at which hearing
damage (8 hrs.) begins
Cement Mixer / Power Saw| 100| No more than 15 minutes of unprotected exposure
recommended for sounds
between 90-100 dB.
Drill / Jackhammer| 110| Regular exposure to sound over 100 dB of more than 1-minute risks permanent
hearing loss.
Rock Concerts (varies)| 110~140| The threshold of pain begins around 125 dB
Earphones Tempering
Upon usage of new earphones, we strongly recommend tempering it by playing music for a period of 100-200 hours at a medium volume level.
Physiology of the Ear
For additional information, reference:
- Having the correct headphone side in the correct ear affects listening experience. Note the “L” and “R” markings on the side of each headphone. “L” is for the left ear. “R” is for the right ear.
- Excessive listening levels can cause permanent hearing damage. Avoid loud listening, especially for extended periods of time. Recommended listening to time is not more than 90 minutes.
Use Responsibly
Do not use headphones when it’s unsafe to do so – while operating a vehicle,
riding a bike, crossing streets, or during any activity or in an environment
where your full attention to your surroundings is required. It’s dangerous to
drive while wearing headphones, and in many places, illegal because it
decreases your chances of hearing life-saving sounds outside of your vehicle,
such as another car’s horn and emergency vehicle sirens. Please avoid wearing
your headphones while driving.
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